Customized solutions
In addition to our standard product offering, Lansmont also designs and manufactures customized impact testing systems to meet customers' specific requirements. Over the years, we have delivered numerous impressive customized test solutions for our customers and we would like to share some of these examples.
Shock
Shock test data is key information when determining if your product is capable of withstanding its intended distribution and use environment. For any mechanical shock testing application, Lansmont builds a Shock Test System to meet your needs.
91HITS horizontal impact test system
The challenge
The US Army needed outside expertise in designing a horizontal impact test system which could simulate the horizontal energy associated with IED explosions in a controlled laboratory environment.
The solution
The 91 HITS is a two sled design–an impact sled and a test sled. The impact sled is pneumatically fired into the test sled. Impact velocity changes as high as 34 mph (15 m/s) and accelerations upwards of 500g. Impact energy sufficient to throw a 250 lb. (113 kg.) soldier nearly four stories (38 ft. / 12 m) into the air.
Vertical impact test system (VITS)
The challenge
The US Army needed outside expertise in developing a laboratory test system that can replicate the multiple vertical shocks and impact energy associated with the dynamic response that results from an explosion underneath a ground vehicle.
The solution
Lansmont designed the Vertical Impact Test System (VITS), called Crew Seating Blast Effects Simulator (CSBES) by the Army Research Lab. The system is capable of generating multiple programmable impact events. For the initial shock event, the stationary table is impacted by a 1,200 lb. bullet fired by a pneumatic piston. This creates enough energy to drive the shock table with a 650 lb. test dummy at a velocity of 7 meters per second.
To simulate the dynamic conditions of a blast response, the VITS generates three programmed impacts per event:
- Initial impact to the feet area
- Main shock event to table
- Ensuing “after shock” coming from vehicle’s landing, known as “slam down”
HSXX20 Shock test system
The challenge
Certain products and components must survive extreme impact events. Consider the case of the fuze attached to penetrating ordinance—the “bunker buster” bomb. In order to provide the intelligence for the munitions, it must survive extreme impacts and continue to function.
To simulate these extreme impact events, Air Force Research Laboratory (AFRL) required a shock system capable of:
- Maximum velocity change up to 150 ft./sec (45 m/sec).
- Maximum acceleration amplitudes up to 25,000 g’s
The solution
The performance requirements would lead to the fastest vertical shock system that Lansmont has built to date. The HSXX20 Shock Test System utilizes a unique, revolutionary new design feature—the “active” seismic base. The active seismic is attached to a nitrogen‐charged piston and is accelerated upwards towards the falling table during the shock test.
With this additional performance boost, the HSXX20 can generate maximum velocity changes up to 180 ft./sec (54.9 m/sec). This results from the shock table going from 0 to 122 mph in less than 40 feet.
Mortar plate test System (MPTS)s
The challenge
A 120 mm mortar produces forces of over 350,000 pounds when fired. High firing rates affect the reliability and life of the baseplates that support these mortar systems. The Mortar Plate Test System (MPTS) replicates the forces experienced during live fire with a cycle rate over 10 impacts per minute.
The solution
The MPTS uses high pressure air to fire steel “bullets” into a specialized hydraulic programmer and fixture which transmits the desired impact pulse into the baseplate. The MPTS will allow the Army to develop new baseplate designs that reduce the load on soldiers, allowing them to maneuver more quickly and with less effort while maintaining baseplate reliability standards.
Model 122-213 Shock test system
The challenge
Testing a supercomputer poses some unique challenges. Subassemblies and components need to be evaluated for reliability as well as the much larger completed system. One of the world’s top supercomputing companies approached Lansmont about designing a shock test system capable of not only testing sub-assemblies, but also the entire supercomputer itself.
The solution
Lansmont delivers the 122-213K Shock Test Sysetm. This machine’s 122cm x 213cm, 8,000 lb. capacity test bed represents the largest fully capable Damage Boundary test system Lansmont has ever assembled. Supercomputers are now easily and entirely tested on Lansmont super machines!
Vibration
Lansmont’s Vibration Test Systems are simple to operate safely and can perform a wide range of vibration tests in accordance with government, industry and corporate specifications.
Model 56000 high performance vibration system
The challenge
Testing a supercomputer poses some unique challenges. Subassemblies and components need to be evaluated for reliability as well as the much larger completed system. One of the world’s top supercomputing companies approached Lansmont about designing a vibration system capable of not only testing sub-assemblies, but also the entire supercomputer itself.
The solution
The Model 56000 High Performance Vibration System includes two 48 x 48 in. (122 x 122 cm) tables. Each table is fitted to actuators controlled by High Performance Servo Valves. The two tables are controlled in unison to provide a 48 x 96 in. (122 x 244 cm) test surface capable of handling 8000 lbs. (3628 kg),with performance to 500 Hz.
Model 28000 Vibration system with 102 x 160 inch table
The challenge
- HVAC systems are large and sophisticated pieces of hardware with critical components and sub-assemblies beneath their simple, attractive covers.
- Goodman Manufacturing approached Lansmont with a request for the largest vibration test system ever assembled in our facilities and we delivered!
The solution
- Lansmont delivered a 28000 Vibration Test System with a 160 inch x 102 inch table, and fidelity out to 300 Hz.
- The Model 28000 allows for loading of large test samples, while still providing performance for not only typical ISTA and ASTM transport simulation, but also that required to simulate measured transport environments.
MH-15K Material handling test system
The challenge
- Basiloid is a unique forklift fixture used to handle large products during warehousing and vehicle loading.
- Special packaging designs are needed to facilitate material handling with basiloid fork trucks.
- No test system existed to simulate the dynamics associated with this unique mode of handling.
- Original method of simulation, using real forklifts and drivers was neither efficient or repeatable.
The solution
- The MH-15K Material Handling Test System essentially combines a hydraulic vibration system with a forklift mast for realistic simulation of handling conditions.
- For this custom application, a Basiloid fixture was attached to the standard forklift mast, which is then attached to the hydraulic actuator.
- Employing Field-to-Lab technology, the MH-15K is capable of performing time‐history replications of SAVER 3X90 data collected from actual fork trucks.
